Juvenile bolas spiders attract psychodid flies

Oecologia ◽  
1996 ◽  
Vol 106 (2) ◽  
pp. 266-271 ◽  
Author(s):  
K. V. Yeargan ◽  
L. W. Quate
Keyword(s):  
Bolas Spiders

scholarly journals Evidence against moth attraction by Cyrtarachne, a genus related to bolas spiders

2001 ◽  
Vol 50 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Tadashi Miyashita ◽  
Yoshitaka Sakamaki ◽  
Akira Shinkai
Keyword(s):  
Bolas Spiders

Molecular Phylogeny of Moth-Specialized Spider Sub-Family Cyrtarachninae, which Includes Bolas Spiders

2014 ◽  
Vol 31 (11) ◽  
pp. 716-720 ◽  
Author(s):  
Akio Tanikawa ◽  
Akira Shinkai ◽  
Tadashi Miyashita
Keyword(s):  
Molecular Phylogeny ◽  
Bolas Spiders

Biology of Bolas Spiders

1994 ◽  
Vol 39 (1) ◽  
pp. 81-99 ◽  
Author(s):  
K V Yeargan
Keyword(s):  
Bolas Spiders

Adult male bolas spiders retain juvenile hunting tactics

Oecologia ◽  
1997 ◽  
Vol 112 (4) ◽  
pp. 572-576 ◽  
Author(s):  
K. V. Yeargan ◽  
L. W. Quate
Keyword(s):  
Adult Male ◽  
Hunting Tactics ◽  
Bolas Spiders

Chemical Mimicry: Bolas Spiders Emit Components of Moth Prey Species Sex Pheromones

Science ◽  
1987 ◽  
Vol 236 (4804) ◽  
pp. 964-967 ◽  
Author(s):  
M. K. STOWE ◽  
J. H. TUMLINSON ◽  
R. R. HEATH
Keyword(s):  
Sex Pheromones ◽  
Prey Species ◽  
Chemical Mimicry ◽  
Bolas Spiders

scholarly journals Deceptive signals and behaviors of a cleptoparasitic beetle show local adaptation to different host bee species

2018 ◽  
Vol 115 (39) ◽  
pp. 9756-9760 ◽  
Author(s):  
Leslie Saul-Gershenz ◽  
Jocelyn G. Millar ◽  
J. Steven McElfresh ◽  
Neal M. Williams
Keyword(s):  
Local Adaptation ◽  
Selective Pressure ◽  
Species Recognition ◽  
Mate Location ◽  
Closely Related Species ◽  
Female Host ◽  
Cross Attraction ◽  
Ratio Of Components ◽  
Bolas Spiders ◽  
Blister Beetle

Chemosensory signals play a key role in species recognition and mate location in both invertebrate and vertebrate species. Closely related species often produce similar but distinct signals by varying the ratios or components in pheromone blends to avoid interference in their communication channels and minimize cross-attraction among congeners. However, exploitation of reproductive signals by predators and parasites also may provide strong selective pressure on signal phenotypes. For example, bolas spiders mimic the pheromones of several moth species to attract their prey, and parasitic blister beetle larvae, known as triungulins, cooperatively produce an olfactory signal that mimics the sex pheromone of their female host bees to attract male bees, as the first step in being transported by their hosts to their nests. In both cases, there is strong selection pressure on the host to discriminate real mates from aggressive mimics and, conversely, on the predator, parasite, or parasitoid to track and locally adapt to the evolving signals of its hosts. Here we show local adaptation of a beetle, Meloe franciscanus (Coleoptera: Meloidae), to the pheromone chemistry and mate location behavior of its hosts, two species of solitary bees in the genus Habropoda. We report that M. franciscanus’ deceptive signal is locally host-adapted in its chemical composition and ratio of components, with host bees from each allopatric population preferring the deceptive signals of their sympatric parasite population. Furthermore, in different locales, the triungulin aggregations have adapted their perching height to the height at which local male bees typically patrol for females.

Experimental evidence that high humidity is an essential cue for web building in Pasilobus spiders

Behaviour ◽  
2017 ◽  
Vol 154 (7-8) ◽  
pp. 709-718 ◽  
Author(s):  
Tadashi Miyashita ◽  
Minoru Kasada ◽  
Akio Tanikawa
Keyword(s):  
Mechanical Property ◽  
Experimental Evidence ◽  
Foraging Behaviour ◽  
High Humidity ◽  
Web Building ◽  
Bolas Spiders

Spiders in the subfamily Cyrtarachninae, including bolas spiders, are moth specialists, and it has been suggested that these spiders initiate web-weaving under high humidity. Here we used Pasilobus hupingensis to experimentally test whether Cyrtarachninae spiders build webs exclusively under high humidity. The results showed that humidity, as well as temperature and prey feeding history, affected web-building probability, but humidity had a much stronger effect. Moreover, spiders never constructed webs at under <70% humidity. We suggest that a mechanical property in sticky materials derived from moth specialization; namely, unusually high, yet rapidly degrading stickiness, is likely to have promoted the evolution of plastic foraging behaviour that varies with humidity.

Sign in / Sign up

Export Citation Format

Share Document